They serve the purpose yes, but if cameras have advanced considerably at a bare minimum level in phones etc., it is just a point to ponder why you wouldn’t improve to better spec ones in a premium car (PK market wise). It would only cost a little more to Indus/Toyota.
Don’t have this car actually, but considering it for future purchase. I have a Honda Fit with original cam which is quite ok in low light. I’ve seen the results of the Civic cam, specially the front one in daylight and it was impressive at first sight.